Finite element approximation in axisymmetrical domains

Author

Boqlietti, A. ; Chiampi, M. ; Chiarabaglio, D. ; Tartaglia, M.

Author_Institution

Dipartimento di Elettrotecnica, Politecnico di Torino, Italy

Volume

26

Issue

2

fYear

1990

fDate

3/1/1990 12:00:00 AM

Firstpage

395

Lastpage

398

Abstract

An attempt is made to investigate and improve the accuracy of finite-element solutions in axisymmetrical magnetostatic field computations. Firstly, a one-dimensional model problem, whose analytical solution is known, is considered in order to exhaustively analyze the influence of the mesh and of the shape functions. A technique is proposed which uses shape functions dependent on the distance from the rotational axis. The approach is accurately described for the one-dimensional problem, and the improvements are shown. The generalization of technique is then discussed and verified in connection with two-dimensional (2-D) problems

Keywords

finite element analysis; magnetic fields; magnetostatics; analytical solution; axisymmetrical magnetostatic field computations; electromagnetic field; finite element approximation; finite-element solutions; mesh function; one-dimensional model; rotational axis; shape functions; two-dimensional problem; Analytical models; Current density; Finite element methods; Magnetic analysis; Magnetic flux; Magnetic flux density; Magnetostatics; Performance analysis; Permeability; Shape;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.106337

Filename

106337